Home / 27,685.09-38,203.04-16,355.12

Finding the Fourth Proportional to 27,685.09, 38,203.04 and 16,355.12

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Solution

The fourth proportional to 27,685.09, 38,203.04 and 16,355.12 is: 22,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,685.09 : 38,203.04 = 16,355.12 : x
  2. Step 2: Convert to fraction form
    27,685.09/38,203.04 = 16,355.12/x
  3. Step 3: Cross multiply
    27,685.09x = 38,203.04 × 16,355.12
  4. Step 4: Simplify right side
    27,685.09x = 624,815,153.44
  5. Step 5: Solve for x
    x = 624,815,153.44/27,685.09
  6. Step 6: Final answer
    x = 22,568.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.